Business Segment Data (Schedule of Certain Segment Data) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 02, 2024	Feb. 25, 2023	Feb. 26, 2022
Segment Reporting Information [Line Items]
Net sales	$ 1,416,942	$ 1,440,696	$ 1,313,977
Operating Income (Loss)	133,833	125,788	22,045
Depreciation and Amortization	41,588	42,403	49,993
Capital Expenditures	43,180	45,177	21,841
Identifiable Assets	884,064	915,365	887,863
Intersegment elimination
Segment Reporting Information [Line Items]
Net sales	(40,888)	(40,478)	(50,915)
Corporate and other
Segment Reporting Information [Line Items]
Operating Income (Loss)	(35,119)	(28,185)	(19,375)
Depreciation and Amortization	3,356	4,012	4,388
Capital Expenditures	6,243	10,975	2,933
Identifiable Assets	96,519	69,814	77,443
Architectural Framing Systems | Operating Segments
Segment Reporting Information [Line Items]
Net sales	601,736	649,778	546,557
Operating Income (Loss)	64,833	81,875	38,088
Depreciation and Amortization	19,226	19,386	20,361
Capital Expenditures	4,733	11,432	7,344
Identifiable Assets	363,512	426,946	414,012
Architectural Glass | Operating Segments
Segment Reporting Information [Line Items]
Net sales	378,422	410,627	407,421
Operating Income (Loss)	11,840	18,140	(22,071)
Depreciation and Amortization	11,955	11,964	14,564
Capital Expenditures	12,142	5,613	5,865
Identifiable Assets	208,651	207,730	225,362
Architectural Services | Operating Segments
Segment Reporting Information [Line Items]
Net sales	378,449	316,554	309,241
Operating Income (Loss)	68,046	28,610	1,785
Depreciation and Amortization	4,011	3,953	7,495
Capital Expenditures	3,166	3,683	3,449
Identifiable Assets	131,651	141,840	114,120
Large-Scale Optical | Operating Segments
Segment Reporting Information [Line Items]
Net sales	99,223	104,215	101,673
Operating Income (Loss)	24,233	25,348	23,618
Depreciation and Amortization	3,040	3,088	3,185
Capital Expenditures	16,896	13,474	2,250
Identifiable Assets	$ 83,731	$ 69,035	$ 56,926